Super value. The environment of the apartment is very quiet as it is not very close to the main Sukhumvit Road (10 minutes walk). There is a Lawson convenience store within 2 min walk, though you may need to go to Terminal 21 for more food selection. The security guard of this apartment is very nice and helpful. There is a small yet fully-functioning gym room and swimming pool (I never swam there, but the gym is good for my basic workout).
Apartment is fully furnished with high-speed internet. A/C and shower function without any problem. There are cooking tools and utensils if you would like to cook some simple meals. There is also a washing machine. The TV however does not connect with cable TV, so you would need to connect it with your own computer for Netflix.
Mattress is however too soft for my back (warning to anyone with low back pain).
But considering the price, I would not make any complaints. The host Rogier is super helpful and attentive to your request.